Table 3

Baseline characteristics in the intervention and control schools

BoysGirls
CharacteristicsI (n=672)C (n=753)p Value*I (n=706)C (n=698)p Value*
Age (year)8.6 (1.9)8.6 (1.8)0.878.5 (1.9)8.5 (1.8)0.83
Organised sports participation (%)37.349.8<0.00118.325.20.004
Physical activity (c/m)801.8 (241.1)831 (303.1)0.64619.3 (147.7)663.7 (162.5)0.20
Shuttle run (laps)6.3 (2.6)5.8 (2.5)0.0015.1 (2.0)4.6 (2.0)0.001
Body mass index (kg/m2)18.0 (3.1)18.1 (3.4)0.8118.4 (3.6)18.1 (3.4)0.13
Waist circumference (cm)62.6 (8.8)62.0 (9.2)0.3162.1 (9.4)61. (8.5)0.05
Hip circumference (cm)72.3 (9.4)72.3 (9.8)0.9774.3 (11.4)73.5 (10.0)0.20
  • * Comparing intervention and control schools at baseline, using the Student t test (age, body mass index, fitness, physical activity (counts per minutes measured by accelerometers)) and χ2 test (sports participation, weight status).

  • Measured in subgroup n=158.

  • Shuttle run score expressed as the number of laps after which a child stops the shuttle run test.

  • C, control condition; I, intervention condition.